# A Study of Hydroxychloroquine and Zinc in the Prevention of COVID-19 Infection in Military Healthcare Workers

> **NCT04377646** · PHASE3 · UNKNOWN · sponsor: **Military Hospital of Tunis** · enrollment: 660 (estimated)

## Conditions studied

- Sars-CoV2
- COVID19

## Interventions

- **DRUG:** Hydroxychloroquine
- **DRUG:** Hydroxychloroquine (placebo)
- **DRUG:** Zinc
- **DRUG:** Zinc (Placebo)

## Key facts

- **NCT ID:** NCT04377646
- **Lead sponsor:** Military Hospital of Tunis
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2020-05-04
- **Primary completion:** 2020-05-24
- **Final completion:** 2020-07-31
- **Target enrollment:** 660 (ESTIMATED)
- **Last updated:** 2020-05-06

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04377646

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04377646, "A Study of Hydroxychloroquine and Zinc in the Prevention of COVID-19 Infection in Military Healthcare Workers". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04377646. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*